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  • 电池状态

    引用:http://blog.csdn.net/ouyangtianhan/article/details/7197987

    想使用Android系统的电池侦听和系统的电池图片；

    image

     

    引入源代码中的两个xml文件（这里我在Android2.2的jar包中找不到，所以才引入，源代码路径：C:\android-sdk-windows\platforms\android-8\data\res\drawable），之后会发现stat_sys_battery.xml报错，所以我就将下图

    image

    1.这些图引入到我的drawable目录下，然后将stat_sys_battery.xml中的图片引入路径更改，如下：

    1. <level-list xmlns:Android="http://schemas.android.com/apk/res/android">   
    2.     <item android:maxLevel="4" android:drawable="@drawable/stat_sys_battery_0" />   
    3.     <item android:maxLevel="14" android:drawable="@drawable/stat_sys_battery_10" />   
    4.     <item android:maxLevel="29" android:drawable="@drawable/stat_sys_battery_20" />   
    5.     <item android:maxLevel="49" android:drawable="@drawable/stat_sys_battery_40" />   
    6.     <item android:maxLevel="69" android:drawable="@drawable/stat_sys_battery_60" />   
    7.     <item android:maxLevel="89" android:drawable="@drawable/stat_sys_battery_80" />   
    8.     <item android:maxLevel="100" android:drawable="@drawable/stat_sys_battery_100" />   
    9. </level-list>  

    2.接下来是在activity中的操作：

       创建一个IntentFilter

    1. <span style="white-space:pre">    </span>private IntentFilter mIntentFilter;   

        在oncreate的方法中：加入：

    1. <span style="white-space:pre">    </span>//电池相关    
    2. <span style="white-space:pre">    </span>mIntentFilter = new IntentFilter();    
    3. <span style="white-space:pre">    </span>mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);   

    3.接收广播

    1. <span style="white-space:pre">    </span>//声明消息处理过程     
    2.        private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {    
    3.            @Override    
    4.            public void onReceive(Context context, Intent intent) {    
    5.                String action = intent.getAction();    
    6.                int status = intent.getIntExtra("status", 0);   
    7.                int health = intent.getIntExtra("health", 0);   
    8.                boolean present = intent.getBooleanExtra("present", false);   
    9.                int level = intent.getIntExtra("level", 0);   
    10.                int scale = intent.getIntExtra("scale", 0);   
    11.                int icon_small = intent.getIntExtra("icon-small", 0);   
    12.                int plugged = intent.getIntExtra("plugged", 0);   
    13.                int voltage = intent.getIntExtra("voltage", 0);   
    14.                int temperature = intent.getIntExtra("temperature", 0);   
    15.                String technology = intent.getStringExtra("technology");   
    16.                String statusString = "";   
    17.                switch (status) {   
    18.                case BatteryManager.BATTERY_STATUS_UNKNOWN:   
    19.                    statusString = "unknown";   
    20.                    break;   
    21.                case BatteryManager.BATTERY_STATUS_CHARGING:   
    22.                    statusString = "charging";   
    23.                    battery_image.setImageResource(R.drawable.stat_sys_battery_charge);   
    24.                    battery_image.getDrawable().setLevel(level);   
    25.                    break;   
    26.                case BatteryManager.BATTERY_STATUS_DISCHARGING:   
    27.                    statusString = "discharging";   
    28.                    battery_image.setImageResource(R.drawable.stat_sys_battery);   
    29.                    battery_image.getDrawable().setLevel(level);   
    30.                    break;   
    31.                case BatteryManager.BATTERY_STATUS_NOT_CHARGING:   
    32.                    statusString = "not charging";   
    33.                    break;   
    34.                case BatteryManager.BATTERY_STATUS_FULL:   
    35.                    statusString = "full";   
    36.                    break;   
    37.                }   
    38.                String healthString = "";   
    39.                switch (health) {   
    40.                case BatteryManager.BATTERY_HEALTH_UNKNOWN:   
    41.                    healthString = "unknown";   
    42.                    break;   
    43.                case BatteryManager.BATTERY_HEALTH_GOOD:   
    44.                    healthString = "good";   
    45.                    break;   
    46.                case BatteryManager.BATTERY_HEALTH_OVERHEAT:   
    47.                    healthString = "overheat";   
    48.                    break;   
    49.                case BatteryManager.BATTERY_HEALTH_DEAD:   
    50.                    healthString = "dead";   
    51.                    break;   
    52.                case BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE:   
    53.                    healthString = "voltage";   
    54.                    break;   
    55.                case BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE:   
    56.                    healthString = "unspecified failure";   
    57.                    break;   
    58.                }   
    59.                String acString = "";   
    60.                switch (plugged) {   
    61.                case BatteryManager.BATTERY_PLUGGED_AC:   
    62.                    acString = "plugged ac";   
    63.                    break;   
    64.                case BatteryManager.BATTERY_PLUGGED_USB:   
    65.                    acString = "plugged usb";   
    66.                    break;   
    67.                }   
    68.                Log.i("cat", statusString);   
    69.                Log.i("cat", healthString);   
    70.                Log.i("cat", String.valueOf(present));   
    71.                Log.i("cat", String.valueOf(level));   
    72.                Log.i("cat", String.valueOf(scale));   
    73.                Log.i("cat", String.valueOf(icon_small));   
    74.                Log.i("cat", acString);   
    75.                Log.i("cat", String.valueOf(voltage));   
    76.                Log.i("cat", String.valueOf(temperature));   
    77.                Log.i("cat", technology);   
    78.                //要看看是不是我们要处理的消息     
    79.                if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {               
    80.                    //电池电量，数字     
    81.                    Log.d("Battery", "" + intent.getIntExtra("level", 0));                   
    82.                    //电池最大容量     
    83.                    Log.d("Battery", "" + intent.getIntExtra("scale", 0));                   
    84.                    //电池伏数     
    85.                    Log.d("Battery", "" + intent.getIntExtra("voltage", 0));                   
    86.                    //电池温度     
    87.                    Log.d("Battery", "" + intent.getIntExtra("temperature", 0));    
    88.                    //电池状态，返回是一个数字     
    89.                    // BatteryManager.BATTERY_STATUS_CHARGING 表示是充电状态     
    90.                    // BatteryManager.BATTERY_STATUS_DISCHARGING 放电中     
    91.                    // BatteryManager.BATTERY_STATUS_NOT_CHARGING 未充电     
    92.                    // BatteryManager.BATTERY_STATUS_FULL 电池满     
    93.                    Log.d("Battery", "ss" + intent.getIntExtra("status", BatteryManager.BATTERY_STATUS_CHARGING));    
    94.                    //充电类型 BatteryManager.BATTERY_PLUGGED_AC 表示是充电器，不是这个值，表示是 USB     
    95.                    Log.d("Battery", "" + intent.getIntExtra("plugged", 0));    
    96.                    //电池健康情况，返回也是一个数字     
    97.                    //BatteryManager.BATTERY_HEALTH_GOOD 良好     
    98.                    //BatteryManager.BATTERY_HEALTH_OVERHEAT 过热     
    99.                    //BatteryManager.BATTERY_HEALTH_DEAD 没电     
    100.                    //BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE 过电压     
    101.                    //BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE 未知错误     
    102.                    Log.d("Battery", "" + intent.getIntExtra("health", BatteryManager.BATTERY_HEALTH_UNKNOWN));    
    103.                }    
    104.            }    
    105.        };   

        这里真正处理图片变换的是以下几句话：其他的我是在做备注

    1. <span style="font-weight: bold; white-space: pre; ">  </span>switch (status) {   
    2.                case BatteryManager.BATTERY_STATUS_UNKNOWN:   
    3.                    statusString = "unknown";   
    4.                    break;   
    5.                case BatteryManager.BATTERY_STATUS_CHARGING:   
    6.                    statusString = "charging";   
    7.                    battery_image.setImageResource(R.drawable.stat_sys_battery_charge);   
    8.                    battery_image.getDrawable().setLevel(level);   
    9.                    break;   
    10.                case BatteryManager.BATTERY_STATUS_DISCHARGING:   
    11.                    statusString = "discharging";   
    12.                    battery_image.setImageResource(R.drawable.stat_sys_battery);  
    13.                    battery_image.getDrawable().setLevel(level);   
    14.                    break;   
    15.                case BatteryManager.BATTERY_STATUS_NOT_CHARGING:   
    16.                    statusString = "not charging";   
    17.                    break;   
    18.                case BatteryManager.BATTERY_STATUS_FULL:   
    19.                    statusString = "full";   
    20.                    break;   
    21.                }  

    4.在onResume方法中注册消息处理器 

    1. <span style="white-space:pre">    </span>registerReceiver(mIntentReceiver, mIntentFilter);  

    5.在onPause方法中注销

      1. <span style="white-space:pre">    </span>unregisterReceiver(mIntentReceiver);  
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  • 原文地址：https://www.cnblogs.com/sode/p/2886445.html
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